Electric water-heater.



PATENTED MAY 14, 1907.

APPLICATION FILED FEB. 11, 1907.

w x w w ii/ W F r E g W A 4J6 Lbk? M m: u z p "i UNITED STATES PATENT OFFICE.

EDWARD 0. MILES, or DENVER, COLORADO} ELECTRIC WATER-HEATER.

Specification of Letters Patent.

Patented May 14, 1907.

Application filed I'elcaary 11, 1907. Serial No. 356,747.

re erence marked thereon, which forma part of this specification,.--

My invention relates to improvements in apparatus more especially intended for heatl'i Lg water.

It is well adapted for use in heating hot water in residences as other places where hot water is required.

It may also be-employed for drying fruit, ore or other articles wherever heatis required.

It may also be employed for the generation of steam.

My object is to provide a device of this character which shall be exceedirgly simple in construction, and very economical in use.

It is well adapted for domestic use for heatin water for the bath 21,".(l other purposes rom the fact that -its action; is exceedia'glyf quick, while the consumption of elec tricity s small as compared with the quantityjof waterheated.

Generally s eakirig the device corsists of a reservoir'iiz. wliich is it-serteda vertically disposed ;diaphragm forming a support for coils or loops ,of resista rce wire preferably what is knownas climax Germa silver wire, the various loops being coimected in series. diaphra m "is composed of insulating mateordinary temperatures such as asbestos fiber board 5 The reservoir preferably occupies an upright positiori, the water beiig introduced force for the purpose.

The

. nying drawing in which illustrated an embodiment thereof. I A I In this drawing, Figure 1";is a side elevation of the device." Fig. 2is' a'v'erti'cal lon' -tudinal section taken on .the'line 2 2 3.,

Fig. 3 is a cross section taken on the line 3-3 Fig. 2. Fig. 4 is a fragmenta side elevation of the diaphragm provide with resist- .ance coils. 1,

The same reference characters indicate the same parts in all the views'.- Let the numeral 5 desi" nate an. upright I casing preferably cyliudrica in form, and provided with top and bottom plates designated 6 and 7 respectively, the s'aidfipl'ates being connected with the bod ;fof the-casing 5 by tie rods 8 passing throug openings formed in both plates and secured by thumbnuts 9.

These tie rods are located outside of the casing, the plates 6 and 7 being of-suflicient size for the purpose (see Fig. 3).. ,-Between eachextremity of the casing and the ad'acent plate, is located a rubber disk or-was or 11 orming a perfectly tightjoint'when the thumb nuts are screwe on the threaded extremities of the tie ro s: with sufficient Within this casing is tightly fitted a vertically disposed diaphragm 10 preferably composed of' asbestos fiber board. It is. of substantially the same width as the diameter of the casing 5 on the inside and this is secured by forcing-it into the ca s-' ing, its edges engaging theo' posite sides of the. casing and supporting it; 111 place. This diaphragm is somewhat}: shorter than the length of the casing leaving-as ace both at the top and bottom for theeircu ation of'water between the twoeompartmsa s. g j

The diaphragm formsia: support orholder for a series of coils. or loops-i2 preferably formed of what'is known as climax German silver wire. Afny suitable resistance wire, however, may be employed' These coils or series oi 'loops are COIlIlBOtBddIlzSBIlGS by the intervening parts 131 In other words all of the series of loops are formed-from'one continuous pieceof wire. One extremity of this wire is connected with'ga binding post 1,4- at ed with a binding post. 15 at the bottom. From these binding posts lead conductors 16 and- 17 to a source of electricity (not shown).

Connected with the lower extremity of the casing is an inlet pipe 18 proyided with a Ioo the top, while the other extremity is connect- Valve- -This pipe may be connected with a waterlsupply conduit of a suitable water system. The-upper extremity of the casing is provided-with an outlet pipe 20 which has a downwardly extending extremity 21 for convenience of drawing water from the heater.

T o facilitate: the securing of the casing to a It is evident from the arrangement of the coils of Wire;

nated 25." -.Th

suitable wall orsupport 22, the casing is pro- Vided with top and bottom securing plates desi natedf23 which are substantially alike and a-ve openings in their opposite extremities to receivefastening devices 24 (see Fig. 3). v 'The binding, posts are of course insulated from theca's'ing by insulating material desiglsj casing maybe composed of metal-or any-other suitable material, but it is found inpractice=that the electric current is not carriedsfromythe coils through the water tothecasing, neither does the current I diaphragm 10 being comaratively'thimthat the said coils are open or'the' fr'ee'circu'lation of the water entirely around theswire thus giving an extensive wire heating surface as compared with coils which are Wound around a core whereby the Wire is concealed from the water on one side.

' turn water into the casing hot waterjmay tors 1'6 and IZ-are connected with a suitable source iofflelectricitm' it-is only necessary to and turn on the current) Within a .very s ort time say less than amii'iuteafter the current is turned on, be drawn off through the outlet pipe 20, i

- As shown' in the-drawing the wire forming the coils 112 is passed transversely through openings :formed in the diaphra m 'whihh tl1ereby. g ves 'a support to the coils without other'fastening-means.

1 Having thus described my invention, What I,cla1mis 1'. An "electric water heater comprlsmg a casing,- an insulating diaphragm inserted in the cas1ng,-;and-;a series of coils mounted on i vertically disposed casing a Whenfthe 'deviceis'in use and the conducthe diaphragm, the said coils being. connected in series, and a source of electricity with which the coils are connected,; the'rservoir duits substantially as described.

2. An electric water heater, comprisihg a diaphragm verividln tically disposed in said casing and at the top and bottom, and a series of resistance" coils'moun'ted on the diaphragm and extending on both sidesi-of the latter, and 'a' suitable source of electricity with which the coils are connected in series cally disposed casing, top an engaging .the casing, tie" rods the said plates with'theca'sing, said rods being located on the outside' of the casing, and means interposed between thetwo plates for forming water tight. joints at the ends of the bottom. plates and supported therein byfthe friction between its' edges and the opposite side walls of diaphragm, and a suitable source .ot-electricity with which the coils are. connected' in series, substantially as described:

casing, means for securingthe casing to a suitable support, a diaphragm inserted in the Casing and --co1np0sed ofinsulatin material, said iaphragm being ofless lengt thanthe casing V v communication both atthe top and bottom, resistance .coils mounted on the diaphragm, and a suitable source of electricity "with series, substantially as described. I

In testimony whereof I aflix 'my signature 1n presence of two wlt'nesses.

DWAnD o; MILES. Witnesses: 1

DENA NELSON, l A. J. OBRIEN.

the same intotwo compartmentsithe-sai compartments being in communication both' forconnecting casing, a diaphragm inserted in tl1e casing- 4. An electric heater.,'thecombination'ofa whereby the two compartments are in 3. An electric heater comprising .a verti* .85 i s whlch the resistance .COIlS' are connected: 1n

. s being provided with lnlet and outlet con- 1 

